refactor: remove Tools page and associated link from layout, streamlining navigation

app/layout-content.tsx

@@ -73,14 +73,6 @@ export default function LayoutContent({ children }: { children: React.ReactNode
                 Features
               </Link>
             )}
-            {auth.user && (
-              <Link
-                href="/tools"
-                className="px-4 py-2 text-sm font-medium text-neutral-600 dark:text-neutral-400 hover:text-neutral-900 dark:hover:text-white rounded-lg hover:bg-neutral-100/50 dark:hover:bg-neutral-800/50 transition-all duration-200"
-              >
-                Tools
-              </Link>
-            )}
           </>
         }
       />

app/tools/page.tsx

@@ -1,15 +0,0 @@
-'use client'
-
-import UtmBuilder from '@/components/tools/UtmBuilder'
-
-export default function ToolsPage() {
-  return (
-    <div className="max-w-2xl mx-auto py-10 px-4">
-      <h1 className="text-2xl font-bold mb-6 text-neutral-900 dark:text-white">Tools</h1>
-      <div className="bg-white dark:bg-neutral-900 p-6 rounded-2xl border border-neutral-200 dark:border-neutral-800">
-        <h2 className="text-2xl font-bold mb-4 text-neutral-900 dark:text-white">UTM Campaign Builder</h2>
-        <UtmBuilder />
-      </div>
-    </div>
-  )
-}